ICO to AVIF
Convert ICO images to AVIF format online. Fast, free, and secure - all conversions happen in your browser.
ICO
AVIF
Drop your ICO here
or click to browse from your computer
Your files never leave your device
How to Convert ICO to AVIF
1
Upload your ICO file
Click the upload area or drag and drop your ICO image. Batch mode supports up to 20 files at once.
2
Adjust settings (optional)
Set output quality with the slider. The target format is already set to AVIF — change it anytime.
3
Download your AVIF file
Click Convert, then download instantly. Everything runs in your browser — your images never leave your device.
Convert ICO to Other Formats
Frequently Asked Questions
ICO is the format used for browser favicons and Windows application icons. A single file can contain multiple sizes (16×16, 32×32, 64×64) for different display contexts. It is commonly used for website favicons and application icons.
AVIF is a next-generation format based on the AV1 video codec. It typically achieves 50% smaller files than JPG at equivalent visual quality, and supports HDR and transparency. It is best suited for modern web images and high-quality photography.
Converting to AVIF applies lossy compression, which may slightly reduce quality. Use the quality slider in the converter to control the trade-off between file size and visual quality.
Yes. AVIF supports transparency (Yes), so any transparent areas in the source image are preserved in the converted file.
Choose AVIF when you need modern web images requiring small file sizes and high quality. Stick with ICO when website favicons and Windows application icons is the priority for your use case.
Yes. The conversion runs entirely in your browser using JavaScript. Your images are never uploaded to any server, so your files stay completely private and processing is instant.